| 词条 | Pontolis |
| 释义 |
| name = Pontolis | fossil_range = {{Geological range|11.608|5.332|Miocene-Pliocene}} | image = | regnum = Animalia | phylum = Chordata | classis = Mammalia | ordo = Carnivora | subordo = Caniformia | superfamilia = Pinnipedia | familia = Odobenidae | genus = †Pontolis | species = †P. magnus | binomial = Pontolis magnus | binomial_authority = True, 1905[1] | synonyms = Pontoleon magnus True, 1905[1] }}Pontolis is a large extinct species of walrus. It contained only the single species Pontolis magnus.[2] An amphibious carnivore, it was found in formerly marine or coastal areas in what is now California and Oregon, dating between 11.608 and 5.332 million years ago, during the Miocene and Pliocene.[2] References1. ^1 {{cite web |url=http://fossilworks.org/?a=taxonInfo&taxon_no=72019 |title=Pontolis magnus |website=Fossilworks |accessdate=4 August 2015 }} {{Taxonbar|from=Q20817937}}{{Paleo-carnivora-stub}}2. ^1 {{cite web |url=http://fossilworks.org/?a=taxonInfo&taxon_no=36942 |title=Pontolis |website=Fossilworks |accessdate=4 August 2015 }} 5 : Miocene pinnipeds|Mammals described in 1905|Fossil taxa described in 1905|Prehistoric pinnipeds of North America|Odobenids |
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